Air compressor



FIG. 1 is a perspective view of an air compressor showing our new design;

FIG. 2 is a front side elevational view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right plan view thereof;

FIG. 6 is a top side elevational view thereof; and,

FIG. 7 is a bottom side elevational view thereof.

The broken line showing of environmental structure in FIGS. 1 and 2 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an air compressor, as shown and described. 